<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>用户列表</title>
</head>
<body>

<a href="userAdd.jsp">添加用户</a>

<style type="text/css">
    table{
        border-collapse: collapse;
    }
    td{
        boder:1px  solid  #000;
        padding:10px;
    }
</style>
<table>
    <tr>
        <td>编号</td>
        <td>用户名</td>
        <td>密码</td>
        <td>操作1</td>
        <td>操作2</td>
    </tr>
    <%
        Connection connection=null;
        Statement statement=null;
        ResultSet resultSet=null;
        String sql="select * from t_users";
        Class.forName("com.mysql.jdbc.Driver");
        connection= DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                "root",
                "123456"
        );
        statement=connection.createStatement();
        resultSet=statement.executeQuery(sql);
        class User{
            int id;
            String username;
            String password;
        }
        List<User> userList=new ArrayList<User>();
        while(resultSet.next())
        {
            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);

            User user = new User();
            user.id = id;
            user.username = username;
            user.password = password;

            userList.add(user);

        }
        resultSet.close();;
        statement.close();
        connection.close();

        for (User u : userList) {


            out.write("<tr><td>" +u.id +
                    "</td><td>" + u.username +
                    "</td><td>" + u.password +
                    "</td><td>" +
                    "<a href='userDelete.jsp?id="+u.id+"'>删除</a></td>" +
                    "<td><a href='userEdit.jsp?id="+u.id+"&username="+u.username+"&password="+u.password+"'>更新</a></td></tr>");
        }
    %>


</table>
</body>
</html>
